Could these fossils be from people taking food up to where they lived in the mouintains and disgarding the remains which became the fossils they
found? Just a thought.
Fossils of marine organisms, especially shellfish like clams and other molluscs, and sometimes fish, can be found in relatively high elevations in many places around the world...
...Now, to the ancients, fish and/or seashell fossils up in the hills and mountains naturally implied that water levels at some time in the past had to be that high. How else would those seashells get up there?
In the experience of the ancients, only a persistent, calamitous flood could account for such high water in a region that is otherwise largely desert, and where the nearest lakes and seas are far below the elevations where some of these fossils are found.